If you think about it, there's only one possible and predictable thing after they escape.
Eren can't destroy their destination in half a day because if he can, then they can't catch to Eren and the whole continent will die, the end...
At this point, we all know where this is going and the only thing that is not clear is how all of this will end because both possible endings are bad route, where if Eren destroys the continent, game over. And if Mikasa and others successfully thwart Erens plan, then the continent will slaughter paradis island.
I can't wait to see how the author Hajime Isayama brings an end to all of these.